body{
    background: url('../img/mountain-5431950_1920.png');
}
/* padded */
.m-padded-tb-mini {
    padding-top: 0.2em !important;
    padding-bottom: 0.2em !important;
}
.m-padded-tb-massive {
padding-top: 3em !important;
padding-bottom: 3em !important;
}

.m-padded-tb-small{
    padding-top: 2em !important;

}
.m-padded-lr-responsive{
    padding-left: 5em !important;
    padding-right: 5em !important;
}

.m-padded-lr{
    padding-left: 3em !important;
    padding-right: 4em !important;
}


.m-padded-mini{
    padding: 0.3em !important;
}
/* display */

.m-inline-block{
display: inline-block;
}
.m-text{
    font-weight: 300 !important;
    letter-spacing: 1px !important;
    line-height: 1.8;
}

.m-teal{
    color: teal;
}
.m-content{
    text-align:center;
}
.m-container-small{
    max-width: 60em !important;
    margin: auto !important;
}
/* 文字颜色 */
.m-black{
    color: #333;
}
.m-margin{
    margin-top: 2em !important;
}
.m-margin-botton-small{
    margin-bottom: 0.5em !important;
}
.m-margin-tb-massive{
    margin-top: 0.25em !important;
    margin-bottom: 0.25em !important;
}

/*  */
.m-fixed{
    position: fixed !important;
    bottom: 0 !important;
    right: 0 !important;
    z-index: 10;
}

.m-right-top{
    position: absolute;
    top: 0;
    right: 0;
}
/* 网页隐藏 菜单按键  */
.m-mobile-show{
    display: none !important;
}


/* 隐藏菜单 */
@media screen and (max-width:768px){
    .m-mobile-hide{
        display: none !important;
    }
    .m-mobile-show{
        display: block !important;
    }
    .m-padded-lr-responsive{
        padding: 0 !important;
    }
    .m-mobile-wide{
        width: 100% !important;
    }
    .m-mobile-lr-clear{
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
}